Set your PayPal Express language
Shopify shares with PayPal Express which language to use during checkout based on your store's checkout language. If your checkout language is set to English, then Shopify tries to detect the customer's location to tell PayPal which language to display for your customer.
Shopify checks the following information to set the language preference:
- The customer's shipping address.
- The country where the customer is located based on their IP address.
If the customer's details cannot be determined before the customer is sent to PayPal to check out, then PayPal will use your store address in your Store details settings page to set the language that your customer sees during checkout.